Detachable lamp-socket.



M. ERLANGER.

DETAOHABLE LAMP SOCKET.

APPLICATION FILED 1130.30, 1913.

1,117,650. I Patented N0v.17, 1914.

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MILTON ERLANGE-R, 0F BALTIMORE. MARYLAND, ASSIGNORTO EUGENE I. ROSEN-FELD & CO., INC., OF BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND.

DETACHABLE LAMP-SOCKET.

To all whom it may concern:

Be it known that I, MILTON ERLANGER, a citizen of the United States,residing at Baltimore city, State of Maryland, have invented certain newand useful Improvements in Detachable Lamp-Sockets, of which thefollowing is a specification.

This invention relates to electric lamp sockets and has specialreference to means for detachably connecting such sockets to wires.

In the construction of electric signs and other similar display orlighting devices it is frequently desirable to arrange lights on a pairof permanent insulated wires, the latter being secured to a suitablesupporting surface such as a sign board or the like. It is alsodesirable that provision be made so that an unskilled person may shiftthe position of these sockets and without making the usual splicebetween the lead in wires of the sockets and the permanent line wiresabove mentioned.

The principal object of the present invention is to provide a novelsocket arrange ment which shall embody means for making connectionelectrically between the wires within the insulating covering and saidsocket. said connection being of such character that it may be madewithout stripping the insulation from the line wires and beingfurthermore of such character as to enable the connection to be made atany desired point on the line wires and as quickly removed or broken.

.1 second object of the invention is the provision of a lamp socket witha novel connecting arrangement of the above character which is soarranged that the possibility of accidental disconnection is eliminated.

\Vith the above and other objects in view the invention consists ingeneral of certain novel details of construction and combination ofparts hereinafter fully described. illustrated in the accompanyingdrawings,

' and specifically claimed.

Speciflcation of Letters Patent.

Application filed December 30. 1913.

Patented Nov. 17, 1914.

Serial No. 809,450.

ing in section. Fig. 3 is a view of a modification of the device showinga supporting board, a pair of line wires, and the device connectedthereto.

In both modifications herein illustrated there is provided a socket 10of the usual type, it being understood that this socket, in common withthe ordinary socket, has two points of contact for the contacts in thebase 11 of the lamp 12. These features are old and well known in the artand are not deemed necessary here to be shown. From the two contacts onthe socket 10 lead the pins 13 which are provided with sharpened points14. In the form shown in Figs. 1 and 2 these points are corrugated bysimply flexing the wires back and forth as indicated at 15. In the formshown in Fig. 3 these points are likewise corrugated but thecorrugations in this instance are made by stamping the metal of the pinsso as to produce a series of abrupt shoulders 16 and slanting surfaces17 which are arranged in staggered relation on opposite sides of therespective pins. The abrupt shoulders face toward the base of the pin sothat no undue 0bstruction is afforded to the entry of the pin into asupporting body while resistance to the withdrawal of the pin is greatlyincreased thus preventing accidental detachment thereof. These plns,when the device is applied, pass through the insulation 18 of the wirinand through the bundle of twisted or pl aited wires 19 and theirprojecting ends may then be driven into the supporting body or board 20to not only support the lamp socket rigidly in position but also theline wires. socket may be readily positioned atany point along the wiresand may be readily detached therefrom for movement to another point. Itwill be especially noted that the form shown in Fig. 3 is adapted foruse where the chances of detachment are large, such as where the wiresare on the under side of a horizontal board or where the board issubjected to vibration.

There has thus been provided a simple and eflicient device of the kinddescribed and of the character specified.

Having thus described the invention, what is claimed as new, is

1. In combination with a supporting body and insulated line wires, alamp provided with a socket having electric connections By this meansthe attached thereto, said connections having a corrugated portionadapted to engage the line Wires and an extended pointed portion adaptedto engage the supporting body, whereby the connections form the solemeans for rigidly securing said socket and line wires on the supportingbody and the lamp is protected from falling by the corrugations engagingthe Wires should the pointed portions be accidentally displaced from thesupporting body. I

52. In combination with a supporting body and insulated line Wires, alamp provided with a socket having electric connections attachedthereto, said connections having a corrugated portion adapted to engagethe line Wires and an extended pointed pin -:-:.on also corrugatedadapted to engage the supporting body, whereby the connections form thesole means for rigidly securing said socket and line Wires on thesupporting body and the lamp is protected from falling by thecorrugations engaging the Wires should the portions engaging thesupporting body oe accldeinaily displaced.

In testimony whereof I aiiix iny signature in presence of two Witnesses.

MILTGN ERLANGER.

Witnesses WALTON BREWINGTON, Hownno D. Annie.

